Network Working Group L. Berger
Request for Comment: 5523 LabN Consulting, LLC
Category: Experimental April 2009
OSPFv3-Based Layer 1 VPN Auto-Discovery
Status of This Memo
This memo defines an Experimental Protocol for the Internet
community. It does not specify an Internet standard of any kind.
Discussion and suggestions for improvement are requested.
Distribution of this memo is unlimited.
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Abstract
This document defines an OSPFv3-based (Open Shortest Path First
version 3) Layer 1 Virtual Private Network (L1VPN) auto-discovery
mechanism. This document parallels the existing OSPF version 2 L1VPN
auto-discovery mechanism. The notable functional difference is the
support of IPv6.
Berger Experimental [Page 1]RFC 5523 OSPV3-Based Layer 1 VPN Auto-Discovery April 2009Table of Contents
1. Introduction ....................................................2
1.1. Terminology ................................................2
1.2. Conventions Used in This Document ..........................3
1.3. Overview ...................................................3
2. OSPFv3 L1VPN LSA and Its TLVs ...................................5
2.1. OSPFv3 L1VPN LSA ...........................................5
2.2. L1VPN IPv6 INFO TLV ........................................7
3. OSPFv3 L1VPN LSA Advertising and Processing .....................8
4. Backward Compatibility ..........................................9
5. Manageability Considerations ....................................9
5.1. Coexistence with and Migration from OSPFv2 .................9
6. Security Considerations ........................................10
7. IANA Considerations ............................................11
8. Acknowledgment .................................................11
9. References .....................................................11
9.1. Normative References ......................................11
9.2. Informative References ....................................12
1. Introduction
This document defines an OSPFv3-based (Open Shortest Path First
version 3) Layer 1 Virtual Private Network (L1VPN) auto-discovery
mechanism. This document parallels the existing OSPF version 2 L1VPN
auto-discovery mechanism. The notable functional difference is the
support of IPv6.
1.1. Terminology
The reader of this document should be familiar with the terms used in
[RFC4847] and [RFC5251]. The reader of this document should also be
familiar with [RFC5340], [RFC5329], and [RFC5252]. In particular,
the following terms:
L1VPN Layer 1 Virtual Private Network
CE Customer (edge) network element directly connected to the
Provider network (terminates one or more links to one or
more PEs); it is also connected to one or more Cs and/or
other CEs.
C Customer network element that is not connected to the
Provider network but is connected to one or more other Cs
and/or CEs.
Berger Experimental [Page 2]RFC 5523 OSPV3-Based Layer 1 VPN Auto-Discovery April 2009
PE Provider (edge) network element directly connected to one
or more Customer networks (terminates one or more links to
one or more CEs associated with the same or different
L1VPNs); it is also connected to one or more Ps and/or
other PEs.
P Provider (core) network element that is not directly
connected to any of Customer networks; P is connected to
one or more other Ps and/or PEs.
LSA OSPF Link State Advertisement.
LSDB Link State Database: a data structure supported by an IGP
speaker.
PIT Port Information Table.
CPI Customer Port Identifier.
PPI Provider Port Identifier.
1.2. Conventions Used in This Document
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",